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@einen faire gatrut @ffice Letters Patent No. 75,407, dated March 10, 1868.

IMPROVED JOINT FOR PIPES.

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TO ALL WI-IOM IT MAY OONOERN: r

Be it known that we, BENJAMIN GARVIN and R. J. PETTIBONE, of Oshkosh, in the county of Winnebago,

l and State of Wisconsin, have invented a new and improved Joint for Steam, Water, l(.`u'ras,and other Pipes; and

we do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part oi' this specification, in which- Figure 1 is a sectional view of our improved joint.

y Figure 2 is a side view of an elbow made by turning the same at right angles.

Figure 3 is an expansion-joint obtained frolnthe application of the principle claimed.

Similar letters of reference indicate corresponding parts.

This invention relates to the jointing of pipes for steam, water, gas, or other luids, and consists in forming the joint in two halves, which are secured together byva single bolt, by means of' which the joint can be itt'ed to pipes at various angles, and thereby serve a number of useful purposes. K

In the drawings, A A are the halved joints; B B, the pipes, screwed or otherwise fitted into them in thc usual manner. The faces of the joints are fitted'together with steam-tight contact, and so held by a bolt, a passing transversely through the exterior of both, as shown. This bolt can be provided with a nut and washers for securing it stearn-tight, if requisite. The washer is shown at 6, and the nut at d.

By means of ajoint or `joints formed in our. improved manner, any one pipe may be removed from a system of pipes, and another replaced,vwithout interfering with the remainder. The saine joint will answer for forming an elbow, as shown at iig. 2, or changing the direction of pipes by any desired angle. The same principle permits the construction of a superior expansion-joint, as shown at iig. 3, where B and Bl are the pipes for which an expansive allowance is to be provided.

C is a short expansion-pipe, which'is provided with halved parts A of joints, and these halved p arts aro fitted and bolted to corresponding halved parts A on the pipes Bl B, as shown, whereby the longitudinal expansion of the said pipes is permitted. This expansion-joint is claimed to be superior to the ordinary slipjoint, as heretofore used. l j Y Return-joints can be made for any angle, and pipes can be set so as to form a coil by setting the halved parts at the required angle and screwing the nut tight.' To secure a tighter joint, one of the parts should 'be enlarged so as to form an interior shoulder, as ,shown at m in iig. 1, into which th'e other part iits.

Heretofore the joints of any system of pipes were cast whole and the pipe fitted thereto. This construction necessitated the employment of joints made for the particular angle required, and involved more or less diliculty in fitting'the same. Our improvements obviate these objectionable features, and provide a joint equally applicable to any required angle, thus reducing the expense of jointing pipes. The joints can be produced at a. cheaper rate than the ones above cited in comparison, and are not more liable to leak or get out of repair than any other joints.

It` will be seen that the bolt is not cast with the parts, and, being held in place by thc nut and washer at one outer end, and by the head of the bolt at the other, can be easily and readily withdrawn at any time. It often may become necessary to withdraw the bolt for various purposes; hence it is observed that this device possesses advantages over thosev not provided with movable blts, or those couplings where obstructions are inserted within the pipe. l

We claim as new, and desire to secure by Letters Patent- The partsAA, constructed as specified, and used with the bolt a, which said bolt passes transversely through both of said parts, and is suitably secured on both of their outer sides, by nutsv and washers, or their equivalents, as set forth.

The above specication of our invention' signed by us, this 29th day of October, 1867.

BENJ. GAltVIN,

R. J. PETTIBONE. vWitnesses:

.f/ YH. STnoUn,

' A. FORD. 

